Now You See It. Now You don’t 2

Slot machine maths:

a lose lose date with the Pokies

According to Tom Vanderbilt in The Guardian ( Slot machines: a lose lose situation, 8 JUN 2013)

Once seen as a harmless diversion, hi-tech slot machines now bring in more money than casinos – and their players become addicted three times faster than other gamblers.

 Here’s how the math works:

In Australia pokie machines must return between

85%

and

90%

of money gambled.

But here is the catch. If you start out with $300 that means, surely, you’ll go home with$255 in your pocket less some for the big payouts.

WRONG! WRONG! WRONG!

According to ex-gambler Tom Cummings you’ll probably go home with

NOTHING!

In his article, Poker machine maths, (ABC, The Drum, 27 MAY 2011) it is not unusual for someone to start with $300 but put $3,000 into the  machine over 4 – 5 hours. 

Here’s the sting. According to the poker machine, $3,000 was gambled, and $300  was kept (by the slot machine). That means that the machine paid out $2,700… which is the 90 per cent return.

That’s one pension cheque gone for the week.

Warren Buffett has called

gambling in general a 

“tax on stupidity”

or a way of fleecing those who don’t do the maths.

Zombie Maths 12: Mean, Median and Mode

Zombies don’t bleed but Hollywood keeps splattering Zombies in FAKE BLOOD in movies. So every Zombie must know the cost of FAKE BLOOD.

So much FAKE BLOOD seems to be sold in America we have to use American volumes:

1 US fl oz = 29.6 ml

1 US pint = 16 US fl oz =  473 ml

1 US gallon = 8 US pints = 3785 ml = 3.79 litres

These are approx values as  manufacturers round off conversions from fl oz to ml.

Mathspig found 3 types of fake blood out there but Halloween Blood, Stage Blood and Movie Blood.

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Halloween Blood can be found @ Party City

Halloween Blood	Cost	Volume*
Bottle of Blood 1 pint	$ 6.99	1 pint 473 ml
Gallon of Blood	$29.99	128 fl oz 1 gallon 3785ml
test tube Fake Blood	$1.99
1 can Fake Spray Blood	$5.99	73.9 ml
1 bottle Fake Blood	$ 5.99	59.1ml

* Mathspig used more accurate volume conversions than shown on products.

Stage blood @ Stage Makeup

Stage Blood	Cost	Volume
Stage Blood Edible	$ 6.25	0.5 fl oz 14.7ml
Stage Blood Edible	$12.29	4.5 fl oz 133ml
Stage Blood Edible Dark Venous	$17.16	9 fl oz 266ml
Stage Blood Edible 1 Litre (Bright Arterial)	$49.79	33.8 fl oz 1000ml

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 Movie Blood @ Thomasfx

Movie Blood	Cost	Volume
Bright Arterial Squirt Blood	$4.99	0.5 oz 14.7ml
Reel Creations Fresh Blood Gel	$29.99	8 fl oz 236.6 ml
Blood Paint A & B	$149.99	32 fl oz 946 ml
Reel Blood Lung in aged blood	$129.99	1 gallon 3785ml
Thomas FX Movie Blood	$49.99	32 oz
Thomas FX Movie Blood	$89.99	64 oz
Thomas FX Movie Blood	$129.99	128 oz 1 gallon 3785ml

Mean, Mode and Median Costs for Fake Blood:

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Mean: 

This is the average cost. There are 3 types of blood.

Total Cost Halloween Blood = $ 50.95

No. products = 5

Mean = 50.95/5 = 10.19

Halloween Blood Mean is $ 10.19

Total Cost Stage Blood = $ 85.49

No. products = 4

Mean = 85.49/4 = 21.37

Stage Blood Mean is $ $21.37

.

Total Cost Movie Blood = $ 584.93

No. products = 7

Mean = 85.49/4 = 83.56

Movie Blood Mean is $83.56

.

Mode:

Mode is the most common number or cost.

Halloween Blood Mode = $ 5.99  (2 products)

Stage Blood : No Mode

Movie Blood Mode = $ 129.99 (2 products)

  ,

Median:

Median is the mid-point price.

Halloween Blood Median = $ 5.99

Stage Blood Median =  no median

Movie Blood Median = $ 89.99

8. Hi Six????

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Here is a very funny Hi Five Tribute. These roolly are funny, dudes.

But how about a Hi Six?

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Invent a new Hi Five that’s sort of mathsy for your maths class.

Then, when kids do achieve something in your class go wild.

23. The Maths Teachers’ Barbershop Quartet or Don’t give up your Day Job

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All you need is Maths

This is to be sung by a barber’s quartet of maths teachers wearing,

preferably, fake moustaches and hair parted in the middle. Finger clicking is mandatory.

Based on all you need is love by Lennon/McCartney

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Maths, Maths, Maths Maths, Maths, Maths Maths, Maths, Maths

There’s no maths you can do that can’t be done.

Nothing you can solve that can’t be fun.

No need for you to pray, you can learn how to do the maths

It’s easy.

There’s nothing you can graph that won’t astound.

No x you can find that can’t be found.

No reason to sigh but you can learn how to love pi

in time – It’s easy.

All you need is maths, all you need is maths,

All you need is maths, maths, maths is all you need.

10 Best Maths Funnies of 2010

There are Maths Funnies everywhere. Some are smart and intentional. Some are spontaneous. And some like the math exercise with additions (below) in one of my school maths books are just to fill in time.

As Mathspig is always researching Maths in the Media I come across a lot of maths funnies. Here are my 10 Favourites for 2010. 

 

All sources are attributed where identified.

 

 

7 Square Route Sign

 

9 Mock Me Maths